Ottomans-French alliance

like maharbbal said, russia was not a factor in europeon diplomacy during the 16th and 17th centuries, they were just a bunch of prinicipalities which were endlessly raided by the crimean khanate. hardly a threat. by the time russia became a threat to ottoman existance, in the 19th century, france had ruined their traditional alliance with the ottomans in napoleons invasion of egypt.

i should have specified where the turkish navy was supreme. the black sea and the aegean sea were virtually ottoman lakes. the mediteranean was more or less theirs for about 2 centuries after the battle of preveza (1538), and when their fleet was destroyed by united christian forces in 1571, they rebuilt their fleet in six months and re-asserted their naval invincibility in the mediteranean. the sultan even said, after the supposedly disastrous defeat: "you have merely cut off our beards, and the shaven beard grows faster". their chief rivals in the mediteranean were venice, genoa, spain, and other italian city states, all of whom united against the turks to maintain their otherwise threatened presence in the mediteranean.